String TestDir;

void AddCtrlPress(SDL_Keycode key) {
    Event event = {};
    event.key = key;
    event.ctrl = 1;
    event.xwindow = 1280;
    event.ywindow = 720;
    Add(&EventPlayback, event);
}

void AddText(String string) {
    Event event = {};
    event.kind = EVENT_TEXT_INPUT;
    event.xwindow = 1280;
    event.ywindow = 720;
    event.text = Copy(SysAllocator, string).data;
    Add(&EventPlayback, event);
}

void Wait(mco_coro *co) {
    Add(&EventPlayback, {111});
    for (Event *event = CoYield(co); event->kind != 111; event = CoYield(co)) {
    }
}

void PlayTestOpen(mco_coro *co) {
    // Open file, move a little, then open again and verify the caret didn't move
    String basic_env_cpp = Format(SysAllocator, "%.*s/basic_env/basic_env.cpp", FmtString(TestDir));

    AddCtrlPress(SDLK_P);
    Add(&EventPlayback, {EVENT_KEY_PRESS, SDLK_UP, 1280, 720});
    AddCtrlPress(SDLK_Q);
    Wait(co);

    {
        BSet main = GetActiveMainSet();
        Assert(main.buffer->name == basic_env_cpp);
        Assert(main.view->carets[0].range.min == 0);
        Assert(main.view->carets[0].range.max == 0);
        Int line = PosToLine(main.buffer, main.view->carets[0].range.min);
        Assert(line == 0);
    }

    AddCtrlPress(SDLK_DOWN);
    AddCtrlPress(SDLK_DOWN);
    AddCtrlPress(SDLK_DOWN);
    Wait(co);

    Range range = {};
    {
        BSet main = GetActiveMainSet();
        Assert(main.view->carets[0].range.min > 0);
        Assert(main.view->carets[0].range.max > 0);
        range = main.view->carets[0].range;
    }

    AddCtrlPress(SDLK_P);
    Add(&EventPlayback, {EVENT_KEY_PRESS, SDLK_UP, 1280, 720});
    AddCtrlPress(SDLK_Q);
    Wait(co);

    Int buffer_len = 0;
    {
        BSet main = GetActiveMainSet();
        Assert(main.buffer->name == basic_env_cpp);
        Assert(main.view->carets[0].range.min == range.min);
        Assert(main.view->carets[0].range.max == range.max);
        buffer_len = main.buffer->len;
    }

    AddText(Format(SysAllocator, "%.*s:20", FmtString(basic_env_cpp)));
    AddCtrlPress(SDLK_Q);
    Wait(co);

    {
        BSet main = GetActiveMainSet();
        Int pos = main.view->carets[0].range.min;
        Int line = PosToLine(main.buffer, pos);
        Assert(line == 19);
        Assert(main.buffer->name == basic_env_cpp);
        Assert(main.buffer->len != buffer_len);
        Assert(main.buffer->dirty);
    }

    AddCtrlPress(SDLK_Z);
    AddCtrlPress(SDLK_PAGEUP);
    Wait(co);

    {
        BSet main = GetActiveMainSet();
        Assert(main.buffer->len == buffer_len);
        Assert(main.view->carets[0].range.min == 0);
        Assert(main.view->carets[0].range.max == 0);
    }
    ReportConsolef("%s DONE", __FUNCTION__);

}

void Test(mco_coro *co) {
    WorkDir = Format(SysAllocator, "%.*s/basic_env", FmtString(TestDir));
    PlayTestOpen(co);



//    Add(&EventPlayback, {EVENT_QUIT});
}

void InitTests() {
    StyleWaitForEvents = false;
    {
        String file = __FILE__;
        file = NormalizePath(SysAllocator, file);
        file = ChopLastSlash(file);
        TestDir = file;
    }
    AddCo(Test);
}